Coating-machine.



.b'L RAY G. FALMER.

COATING MACHINE.

APPLICATION FILED FEB.5, 1912.

Patented May 21, 1912.

2 SHEETS-SHEET 1.

M W Z EL RAY G. PALMER.

COATING MACHINE APPLICATION FILED FEB. 5, 1912.

Patented May 21, 1912.

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w w M, MP a WW WM N 3 mm fi wm fi UNITED STATES. PATENT OFFICE.

EL RAY o. PALMER, or cmoaeo, ILLINOIS, ASSIGNOIB. 'ro WALTER e.- DANIELS,- or

CHICAGO, ILLINOIS.

COATING-MACHINE.

.To all whom it may concern: I

Be it known that LEL RAY G. Pamnzn, a

citizen of the United States, and resident of Chicago, countyof Cook, and State of Illinois, have invented certain new and useful Improvements in Coating-Machines, of which the following is a specificatiom'and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to maehinesfor applying a coating material to a perforated web, as the films used for the projection of moving pictures.

The object of the invention is to provide such a machine having improved means for preventing the accumulation of the coating material in the apertures of the web.

, The invention contemplates means for spreading a film of the coating material upon the surface of the web and means for puncturing that part of such film which covers the perforations of the web. v

In the accompanying drawingsFigure 1 is a side elevation illustrating a machine embodying the features of improvementprovided by the invention; Fig. 2 is a plan view of the same; and Fig. 3 is a perspective view illustrating a detail of the machine.

The parts of the machine are preferably organized upon a stationary frame which. is generally designated by the numeral 10. This frame is shown as comprising a pair of parallel side plates 11 and 12 and a plurality of connecting members, as 13, extend ing between the plates. A detail of the we: adapted to be coated by the machine is shown at 1 1 in Fig. 3 of the drawings. As isusual in films used for the projection of moving pictures, this web is provided with a series or row of sprocket apertures 15 ex tending along each of its margins.- The path of movement of the web, as 14, through the machine is indicated by the broken lines 16-16 in Fig. 1. In practice. the web. as 14, will be. drawn through the machine, whereby it will be progressively coated upon one side, from end to endpby pulling upon the end of the web.

A liquid-applying roller engageable with one side of the web '14, is shown at' 17. This roller extends between and 'is journaled at its opposite ends in the side plates 11 and 12 and dips into a mntaincr 18.- In order Specification of Letters Patent.

PatentedMay 21,1912.

Application filed February 5,1912. Serial No. 675,615.

that the roller'17 fhay be driven by the movement of the web 14. it is connected by gears 18, 19 with a guide roller 20 having sprocket teeth 21 which enter the perforations 15 of the web. As shown, the roller 17 has a continuous smooth periphery whereby coating materialis applied over the entire surface of the web 14. Usually the coating material will be of such consistency that vwhen applied to the'surface of the web'14 by the .roller 17, it will bridge over the perforations 15. In order-that the perforations of the web will not be permanently closedin this way provision is material in line with each of the perforations 15, while it is still in a fluid state. The contraction of the coating material in dry- .made for puncturing the film, of coating ing will .then serve -to completely clear the web perforations of such material.

As shown, provision 1s made for who ducing a pointed needle into each of the perforations 15. of theweb immediately after the application of the coating material to the surface of the web by the. liquid applying roller-17; To this end. a plurality of pointed needles 22 are provided. Prefer- .ably these needles are arranged in two rows or series. as 23, 24, about a spindle 25 which is rotatably mounted in the frame 10. To provide a supportfor the needles about the spindle 25 they are shown as being peripherally mounted upon a pair of disks 26. 27 which are carried'by the spindle. "In order thatthe needles 22 upon eaclrof the disks 26. 27 may progressively enter.the perforations 15 extending along one of the margins of theweb 14, provision is made for turning the spindle 25 at such a rate that the needles will move-uniformly with the web. As shown. a gear 28 is mounted 'on the spindle 25 adjacent one end. This gear is caused to turn uniformly with the gear gear 29 which meshes with the gear 28 and with the gear 18.

Guide rollers. as 30 and 31 engageable wit-lithe .back of the web 1 are preferably employed for positioning the web in front of. the spindle 25 whereby its perforations will be-entered by the needles 22. As shown. these guide rollers extend between the side plates 11 and 12 of the frame 10 and-are journaled at their opposite ends upon such plates. 'To insure that none of the coating material which hasbeen applied to the face of the web will be collected upon the periphery of either of the guide rollers and 31, each of these guide rollers is' preferably provided with a 'pair of circumferential grooves 32, 33. Thesegroovesare suitably spaced apart to 'register'with the two rows of perforations 15 with which the web 14 is shown to be provided.

In some instances it may bedesirable to adjust the spindle 25 in a direction parallel to the-direction of movement of the web 14. For this purpose the spindle 25 is preferably journaled at its opposite ends in bear-v ing blocks, as 34, each of which is movably mounted in a slideway formed in one of the side plates, as 12, of the frame 10. Ad

justing screws 36, 37 enter the slideway .35

throughits opposite ends and embrace the .nrresponding: bearing block 34 between them to hold. it me usted position. To;

permit of the aforesaid adjustment fofthe spindle 25 without interfering with the meshing of the gears 18, 28 and 29, the gear 29 is mounted for adjustment, upon a curved line hbout the/gear 18. As shown, the gear 29 is mounted upon a shaft 38. This shaft is journaled at itsopposite ends in bearing i.loclrs,'as 39. Each ofthese bearing blocks iii-ted into acurved slideway 40 provided, a one of the side plates, as 12, in the frame Adjusting screws 41 and 42, preferably u ilar in construction to those used'for adp;.-:eing the spindle 25, enter each of'the slideways 40 through its opposite ends and embrace the corresponding bearing block 39 between them.

Provision is preferably made for cleaning the needles 22 during the rotation of the spindle 25 whereby each needle is cleaned after having been presented to the web 14.

shown, the disks. 26, 27 -dip tamer 43' which is supported 1n the frame 10 below the spindle 25. This container will preferably be filled with a solvent for the coating material which is used and a into a conbrush, as 44, may be supported within the container for engagement'with the needles.

If desired, a second application of the coating material may be made upon the surfaceof the web 14 after it passes beyond the: guide roller 31. For this purpose a brush roller 45 will preferably be employed. As shown,this brush roller engages the surface of the web 14 asit turns over the guide roller.46." In order. that none of the coating 2. In a mach' e for coating a moving web having a longitudinal row of apertures, in

combination, asprocket wheel, liquid applying means, a'wheel having a peripheral row of puncturing needles, meansfor guiding the web over the sproc ket wheel, by the li uid applying means and in front of the w eel having the peripheral row of puncturing needles and gear connection between the sprocket wheel and the said wheel having the, peripheral row of puncturing nee es.

3. In a machine for coating a moving web having a longitudinal row of apertures, in combination, a sprocket wheel, a liquid applying roll, awheel having a. peripheral row of puncturing needles, gear conneetion between the sprocket wheel and each'of said other "members, means for guiding the web over the sprocket wheeland liquid applying roll and in front of the said wheel having the peripheral row of puncturing needles.

EL RAY G. PALMER. Witnesses-z CHARLES B. GILLSON, E. M. KLATCHER. 

